well thats the only solution I know and see companies use. Or having the models server sided but I think that would cause a performance issue or not possible. I don't know much about networking lol
I have a better idea: let the mainstream community self police and let the lewd shit fall into obscurity(too late for that now due to TN talking massive shit to PC gamers). This modding thing is such a goddamn non issue seeing that SF has been out for almost 6 years.